87 lines
1.7 KiB
C++
87 lines
1.7 KiB
C++
/*
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modified on Apr 10, 2021
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Modified by MehranMaleki from Arduino Examples
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Home
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*/
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// this is using the HiLetgo 5V 4 Channel Relay Shield
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// pinout is apparently 7,6,5,4
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#define USE_SHT30
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#ifdef USE_SHT30
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#include "SHT85.h"
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#define SHT85_ADDRESS 0x44
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SHT85 sht30;
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#else
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#include <Wire.h>
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#include "DFRobot_SHT20.h"
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TwoWire twowire;
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DFRobot_SHT20 sht20(&twowire);
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#endif
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void fanOn() {
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digitalWrite(7, HIGH);
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}
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void fanOff() {
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digitalWrite(7, LOW);
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}
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void setup()
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{
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pinMode(4, OUTPUT);
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pinMode(5, OUTPUT);
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pinMode(7, OUTPUT);
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digitalWrite(7, LOW);
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Serial.begin(115200);
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#ifdef USE_SHT30
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Wire.begin();
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sht30.begin(SHT85_ADDRESS);
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Wire.setClock(10000);
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#else
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twowire.setClock(10000);
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sht20.initSHT20(); // Init SHT20 Sensor
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#endif
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delay(100);
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//sht20.checkSHT20(); // Check SHT20 Sensor
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}
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const int PIN_RELAY4 = 4;
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const int PIN_RELAY3 = 5;
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void loop()
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{
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while (Serial.available()) {
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const int c = Serial.read();
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if (c == 's') {
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#ifdef USE_SHT30
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sht30.read();
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float humd = sht30.getHumidity();
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float temp = sht30.getTemperature();
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#else
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float humd = sht20.readHumidity(); // Read Humidity
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float temp = sht20.readTemperature(); // Read Temperature
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#endif
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Serial.print(humd);
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Serial.print(",");
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Serial.print(temp);
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//Serial.print(",");
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//Serial.print(volts);
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//Serial.print(",");
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//Serial.println(volts2);
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Serial.println("");
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} else if (c == 'z' || c == 'Z') {
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if (c == 'z') digitalWrite(PIN_RELAY4, LOW);
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if (c == 'Z') digitalWrite(PIN_RELAY4, HIGH);
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}
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}
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delay(1);
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}
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